121220201002231 has 2 divisors, whose sum is σ = 121220201002232. Its totient is φ = 121220201002230.

The previous prime is 121220201002163. The next prime is 121220201002237. The reversal of 121220201002231 is 132200102022121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121220201002231 is a prime.

It is a super-2 number, since 2×121220201002231² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121220201002199 and 121220201002208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121220201002237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60610100501115 + 60610100501116.

It is an arithmetic number, because the mean of its divisors is an integer number (60610100501116).

Almost surely, 2^{121220201002231} is an apocalyptic number.

121220201002231 is a deficient number, since it is larger than the sum of its proper divisors (1).

121220201002231 is an equidigital number, since it uses as much as digits as its factorization.

121220201002231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 121220201002231 its reverse (132200102022121), we get a palindrome (253420303024352).

The spelling of 121220201002231 in words is "one hundred twenty-one trillion, two hundred twenty billion, two hundred one million, two thousand, two hundred thirty-one".